InexPHONE is a free VoIP app that allows you to make cheap calls over the internet using your smartphone. In addition to that, you can also send and receive text messages. It is compatible with Android devices and can be used on any Wi-Fi or 3G/4G/LTE network. The main advantage of this VoIP app is that you can make calls using the internet, which means you don’t have to pay for using the mobile network of your phone provider. You don’t have to worry about the costs of using the mobile network. In addition, the quality of the audio is of high quality, which makes it easy to communicate.